Your question is Why Financial Services Specifically. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Why do you want to work in financial services, and why this company in particular? Walk me through what draws you to the domain, how it fits your long-term goals as a software engineer, and what you think you could contribute here.